<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>basic_datagram_socket::reuse_address</title>
    <link rel="stylesheet" href="../../../boostbook.css" type="text/css">
    <meta name="generator" content="DocBook XSL Stylesheets V1.75.2">
    <link rel="home" href="../../../index.html" title="Asio">
    <link rel="up" href="../basic_datagram_socket.html" title="basic_datagram_socket">
    <link rel="prev" href="remote_endpoint/overload2.html"
          title="basic_datagram_socket::remote_endpoint (2 of 2 overloads)">
    <link rel="next" href="send.html" title="basic_datagram_socket::send">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%">
    <tr>
        <td valign="top"><img alt="asio C++ library" width="250" height="60" src="../../../asio.png"></td>
    </tr>
</table>
<hr>
<div class="spirit-nav">
    <a accesskey="p" href="remote_endpoint/overload2.html"><img src="../../../prev.png" alt="Prev"></a><a accesskey="u"
                                                                                                          href="../basic_datagram_socket.html"><img
        src="../../../up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../home.png"
                                                                                            alt="Home"></a><a
        accesskey="n" href="send.html"><img src="../../../next.png" alt="Next"></a>
</div>
<div class="section">
    <div class="titlepage">
        <div>
            <div><h4 class="title">
                <a name="asio.reference.basic_datagram_socket.reuse_address"></a><a class="link"
                                                                                    href="reuse_address.html"
                                                                                    title="basic_datagram_socket::reuse_address">basic_datagram_socket::reuse_address</a>
            </h4></div>
        </div>
    </div>
    <p>
        <span class="emphasis"><em>Inherited from socket_base.</em></span>
    </p>
    <p>
        <a class="indexterm" name="asio.indexterm.basic_datagram_socket.reuse_address"></a>
        Socket
        option to allow the socket to be bound to an address that is already in
        use.
    </p>
    <pre class="programlisting"><span class="keyword">typedef</span> <span
            class="identifier">implementation_defined</span> <span class="identifier">reuse_address</span><span
            class="special">;</span>
</pre>
    <p>
        Implements the SOL_SOCKET/SO_REUSEADDR socket option.
    </p>
    <h6>
        <a name="asio.reference.basic_datagram_socket.reuse_address.h0"></a>
        <span><a name="asio.reference.basic_datagram_socket.reuse_address.examples"></a></span><a class="link"
                                                                                                  href="reuse_address.html#asio.reference.basic_datagram_socket.reuse_address.examples">Examples</a>
    </h6>
    <p>
        Setting the option:
    </p>
    <pre class="programlisting"><span class="identifier">asio</span><span class="special">::</span><span
            class="identifier">ip</span><span class="special">::</span><span class="identifier">tcp</span><span
            class="special">::</span><span class="identifier">acceptor</span> <span
            class="identifier">acceptor</span><span class="special">(</span><span
            class="identifier">my_context</span><span class="special">);</span>
<span class="special">...</span>
<span class="identifier">asio</span><span class="special">::</span><span class="identifier">socket_base</span><span
                class="special">::</span><span class="identifier">reuse_address</span> <span
                class="identifier">option</span><span class="special">(</span><span class="keyword">true</span><span
                class="special">);</span>
<span class="identifier">acceptor</span><span class="special">.</span><span class="identifier">set_option</span><span
                class="special">(</span><span class="identifier">option</span><span class="special">);</span>
</pre>
    <p>
        Getting the current option value:
    </p>
    <pre class="programlisting"><span class="identifier">asio</span><span class="special">::</span><span
            class="identifier">ip</span><span class="special">::</span><span class="identifier">tcp</span><span
            class="special">::</span><span class="identifier">acceptor</span> <span
            class="identifier">acceptor</span><span class="special">(</span><span
            class="identifier">my_context</span><span class="special">);</span>
<span class="special">...</span>
<span class="identifier">asio</span><span class="special">::</span><span class="identifier">socket_base</span><span
                class="special">::</span><span class="identifier">reuse_address</span> <span
                class="identifier">option</span><span class="special">;</span>
<span class="identifier">acceptor</span><span class="special">.</span><span class="identifier">get_option</span><span
                class="special">(</span><span class="identifier">option</span><span class="special">);</span>
<span class="keyword">bool</span> <span class="identifier">is_set</span> <span class="special">=</span> <span
                class="identifier">option</span><span class="special">.</span><span class="identifier">value</span><span
                class="special">();</span>
</pre>
    <h6>
        <a name="asio.reference.basic_datagram_socket.reuse_address.h1"></a>
        <span><a name="asio.reference.basic_datagram_socket.reuse_address.requirements"></a></span><a class="link"
                                                                                                      href="reuse_address.html#asio.reference.basic_datagram_socket.reuse_address.requirements">Requirements</a>
    </h6>
    <p>
        <span class="emphasis"><em>Header: </em></span><code class="literal">asio/basic_datagram_socket.hpp</code>
    </p>
    <p>
        <span class="emphasis"><em>Convenience header: </em></span><code class="literal">asio.hpp</code>
    </p>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%">
    <tr>
        <td align="left"></td>
        <td align="right">
            <div class="copyright-footer">Copyright © 2003-2022 Christopher M. Kohlhoff<p>
                Distributed under the Boost Software License, Version 1.0. (See accompanying
                file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
            </p>
            </div>
        </td>
    </tr>
</table>
<hr>
<div class="spirit-nav">
    <a accesskey="p" href="remote_endpoint/overload2.html"><img src="../../../prev.png" alt="Prev"></a><a accesskey="u"
                                                                                                          href="../basic_datagram_socket.html"><img
        src="../../../up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../home.png"
                                                                                            alt="Home"></a><a
        accesskey="n" href="send.html"><img src="../../../next.png" alt="Next"></a>
</div>
</body>
</html>
